Electrical characteristics—max111 – Rainbow Electronics MAX111 User Manual
Page 4
MAX110/MAX111
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX111
(V
DD
= 5V ±5%, f
XCLK
= 1MHz, ÷ 2 mode (DV2 = 1), 81,920 CLK cycles/conv, V
REF+
= 1.5V, V
REF-
= 0V, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
LSB
nA
500
CONDITIONS
I
IN+
, I
IN-
Input Bias Current
(Note 3)
pF
10
-0.667 x V
REF
≤
V
IN
≤
0.667 x V
REF
-V
REF
≤
V
IN
≤
V
REF
-0.667 x V
REF
≤
V
IN
≤
0.667 x V
REF
Input Capacitance
-V
REF
≤
V
IN
≤
V
REF
V
0
V
DD
- 3.2
V
IN+
,
V
IN-
Absolute Input Voltage
Range
V
-V
REF
+V
REF
V
IN
Differential Input Voltage
Range
-V
REF
≤
V
IN
≤
V
REF
ppm
15
V
DD
= 4.75V to 5.25V
Power-Supply Rejection
%FSR
INL
ppm/°C
8
Full-Scale Error
Temperature Drift
Relative Accuracy,
Differential Input
(Notes 3, 5–7)
(Notes 3, 4)
±0.25
±2
%
±0.2
±0.20
DNL
Differential Nonlinearity
(Note 6)
UNITS
MIN
TYP
MAX
SYMBOL
ppm/V
6
(Note 2)
PARAMETER
14 + POL
+ OFL
RES
Resolution
CMRR
mV
±4
Offset Error
Common-Mode Rejection
Ratio
10mV
≤
(V
IN+
= V
IN-
)
≤
2.0V
Bits
No-Missing-Codes
Resolution
±0.10
(Note 3)
-8
0
±0.05
±0.10
Full-Scale Error
Uncalibrated
±0.03
±0.05
MAX111BM
13 + POL
+ OFL
Bits
±0.18
V
IN+
= V
IN-
= 0V
MAX111BC/E
MAX111AC/E
After gain calibration (Note 5)
V
IN
≤
0.667 x V
REF
0V
≤
V
IN
≤
V
REF
V
IN
≤
0.667 x V
REF
0V
≤
V
IN
≤
V
REF
0V
≤
V
IN
≤
V
REF
V
IN
≤
0.667 x V
REF
%FSR
INL
Relative Accuracy,
Single-Ended Input
(IN- = GND)
±0.25
±0.15
±0.10
±0.1
±0.06
MAX111BM
±0.18
MAX111BC/E
MAX111AC/E
ACCURACY
(Note 1)
ANALOG INPUTS
-0.667 x V
REF
≤
V
IN
≤
0.667 x V
REF